A single multiple-choice question has n choices, only one of which is correct. A student knows the answer with probability p. If the student does not know the answer, he or she guesses randomly. Find the conditional probability that the student knew the answer, given that the question was answered correctly.

The variable in a relation who’s value depends on the value of the independent variable is called what?

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom